diff --git a/os-trog.sh b/os-trog.sh
new file mode 100644
index 0000000..3c5dd36
--- /dev/null
+++ b/os-trog.sh
@@ -0,0 +1,70 @@
+#!/bin/bash
+# Run this in a terminal in the troggle directory: 'bash os-trog.sh'
+# On WSL, do Shift-click in the file explorer on the troggle folder to open a Linux command line
+# 'Open Linux shell here'
+echo 'Run this in a terminal in the troggle directory: "bash venv-trog.sh"'
+cat /etc/os-release
+# Expects an Ubuntu 22.04 relatively clean install.
+
+sudo apt install python-is-python3 -y
+python --version : ensure python is an alias for python3 not python2.7
+sudo apt update -y
+sudo apt dist-upgrade -y
+sudo apt autoremove -y
+sudo apt install sqlite3 -y
+sudo apt install python3-pip  -y
+
+# this installs a shed-load of other stuff: binutils etc.sudo apt install survex-aven
+sudo apt install git openssh-client -y
+# On a clean debian 11 (bullseye) installation with Xfce & ssh, 
+
+    #on ubuntu 20.04:
+    #Package sftp is not available, but is referred to by another package.
+    #This may mean that the package is missing, has been obsoleted, or
+    #is only available from another source
+    #E: Package 'sftp' has no installation candidate
+    
+    
+# On Ubuntu 20.04, with python10, the pip install fails.
+# So you need to get the pip from source
+# sudo curl -sS https://bootstrap.pypa.io/get-pip.py | python3.10
+# but really you should be using 22.04
+# and also, isf using debian, 
+# sudo python3.10 -m pip install -U virtualenv
+
+# as debian does not install everything that ubuntu does, you need:
+sudo useradd expo
+sudo usermod -a -G sudo expo # to put expo in sudoers group, re-login required
+sudo apt install python3-venv -y
+sudo apt install python3-dev -y
+
+# default since 22.04 
+# sudo apt install python3.10
+sudo apt install python3.10-venv -y
+sudo apt install python3.10-dev -y
+sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.10 1
+
+sudo apt install mariadb-server -y 
+sudo apt install libmariadb-dev -y
+
+sudo python -m pip install --upgrade pip
+
+sudo apt install sftp -y
+echo '###'
+echo '### NOW INSTALLING tunnel and therion, go and have a cup of tea. Or a 3-course meal.'
+echo '###'
+sudo apt install tunnelx therion -y
+
+# Go to https://expo.survex.com/handbook/troggle/troglaptop.html#dbtools
+# sudo service mysql start
+
+git config --global user.email "you@example.com"
+git config --global user.name "Your Name"
+
+echo '###'
+echo '### Currently set version of python'
+python --version
+
+echo '###'
+echo '### Now YOU have to configure the git settings for YOURSELF (not "expo")'
+
diff --git a/requirements.txt b/requirements.txt
index c822f94..7bc9707 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,17 +1,17 @@
-asgiref==3.6.0
-black==23.1.0
+asgiref==3.7
+black==23.3
 click==8.1.3
-coverage==7.1.0
+coverage==7.2
 Django==4.2
-docutils==0.19
+docutils==0.20
 isort==5.12.0
 mypy-extensions==1.0.0
 packaging==23.0
-pathspec==0.11.0
-Pillow==9.4.0
-platformdirs==3.0.0
-pytz==2022.7
+pathspec==0.11
+Pillow==10.0
+platformdirs==3.8
+pytz==2023.3
 ruff==0.0.245
-sqlparse==0.4.3
+sqlparse==0.4
 Unidecode==1.3.6
 beautifulsoup4==4.12